test rename overhaul: step 8 - language tests

tests/language/src/LocalFunctionTest.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing closures.
-
-class LocalFunctionTest {
-  LocalFunctionTest() : field1 = 100, field2_ = 200  { }
-  static int f(int n) {
-    int a = 0;
-    g(int m) {
-      a = 3*n + m + 1;  // Capture parameter n and local a.
-      return a;
-    }
-    var b = g(n);
-    return a + b;
-  }
-  static int h(int n) {
-    k(int n) {
-      var a = new List(n);
-      var b = new List(n);
-      int i;
-      for (i = 0; i < n; i++) {
-        var j = i;
-        a[i] = () => i;  // Captured i is always n.
-        b[i] = () => j;  // Captured j varies from 0 to n-1.
-      }
-      var a_sum = 0;
-      var b_sum = 0;
-      for (int i = 0; i < n; i++) {
-        a_sum += a[i]();
-        b_sum += b[i]();
-      }
-      return a_sum + b_sum;
-    }
-    return k(n);
-  }
-  static int h2(int n) {
-    k(int n) {
-      var a = new List(n);
-      var b = new List(n);
-      for (int i = 0; i < n; i++) {
-        var j = i;
-        a[i] = () => i;  // Captured i varies from 0 to n-1.
-        b[i] = () => j;  // Captured j varies from 0 to n-1.
-      }
-      var a_sum = 0;
-      var b_sum = 0;
-      for (int i = 0; i < n; i++) {
-        a_sum += a[i]();
-        b_sum += b[i]();
-      }
-      return a_sum + b_sum;
-    }
-    return k(n);
-  }
-  int field1;
-  int field2_;
-  int get field2() { return field2_; }
-  void set field2(int value) { field2_ = value; }
-
-  int method(int n) {
-    incField1() { field1++; }
-    incField2() { field2++; }
-    for (int i = 0; i < n; i++) {
-      incField1();
-      incField2();
-    }
-    return field1 + field2;
-  }
-  int execute(int times, apply(int x)) {
-    for (int i = 0; i < times; i++) {
-      apply(i);
-    }
-    return field1;
-  }
-  int testExecute(int n) {
-    execute(n, (int x) { field1 += x; });
-    return field1;
-  }
-  static int foo(int n) {
-    return -100;  // Wrong foo.
-  }
-  static testSelfReference1(int n) {
-    int foo(int n) {
-      if (n == 0) {
-        return 0;
-      } else {
-        return 1 + foo(n - 1);  // Local foo, not static foo.
-      }
-    };
-    return foo(n);  // Local foo, not static foo.
-  }
-  static void hep(Function f) {
-    f();
-  }
-  static testSelfReference3(int n) {
-    int i = 0;
-    var yup;  // Not in same scope as yup below.
-    hep(yup() {
-      if (++i < n) hep(yup);
-    });
-    return i;
-  }
-  static testNesting(int n) {
-    var a = new List(n*n);
-    f0() {
-      for (int i = 0; i < n; i++) {
-        int vi = i;
-        f1() {
-          for (int j = 0; j < n; j++) {
-            int vj = j;
-            a[i*n + j] = () => vi*n + vj;
-          }
-        }
-        f1();
-      }
-    }
-    f0();
-    int result = 0;
-    for (int k = 0; k < n*n; k++) {
-      Expect.equals(k, a[k]());
-      result += a[k]();
-    }
-    return result;
-  }
-
-  static var field5;
-  static var set_field5_func;
-  static testClosureCallStatement(int x) {
-    LocalFunctionTest.set_field5_func = (int n) { field5 = n * n; };
-    (LocalFunctionTest.set_field5_func)(x);
-    Expect.equals(x * x, LocalFunctionTest.field5);
-    return true;
-  }
-
-  static testExceptions() {
-    var f = (int n) => n + 1;
-    Expect.equals(2, f(1));
-    Expect.equals(true, f is Function);
-    Expect.equals(true, f is Object);
-    Expect.equals(true, f.toString().startsWith("Closure"));
-    bool exception_caught = false;
-    try {
-      f(1, 2);
-    } catch (ClosureArgumentMismatchException e) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-    exception_caught = false;
-    try {
-      f();
-    } catch (ClosureArgumentMismatchException e) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-    exception_caught = false;
-    try {
-      f.xyz(0);
-    } catch (NoSuchMethodException e) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-
-    // Overwrite closure value.
-    f = 3;
-    exception_caught = false;
-    try {
-      f(1);
-    } catch (ObjectNotClosureException e) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-
-    // Do not expect any exceptions to be thrown.
-    var g = ([int n = 1]) => n + 1;
-    Expect.equals(2, g());
-    Expect.equals(3, g(2));
-  }
-
-  static int doThis(int n, int f(int n)) {
-    return f(n);
-  }
-
-  static testMain() {
-    Expect.equals(2*(3*2 + 2 + 1), f(2));
-    Expect.equals(10*10 + 10*9/2, h(10));
-    Expect.equals(90, h2(10));
-    Expect.equals(320, new LocalFunctionTest().method(10));
-    Expect.equals(145, new LocalFunctionTest().testExecute(10));
-    Expect.equals(5, testSelfReference1(5));
-    Expect.equals(5, testSelfReference3(5));
-    Expect.equals(24*25/2, testNesting(5));
-    Expect.equals(true, testClosureCallStatement(7));
-    Expect.equals(99, doThis(10, int _(n) => n * n - 1));
-    Expect.equals(99, doThis(10, int f(n) => n * n - 1));
-    Expect.equals(99, doThis(10, (n) => n * n - 1));
-    Expect.equals(99, doThis(10, f(n) => n * n - 1));
-    testExceptions();
-  }
-}
-
-main() {
-  LocalFunctionTest.testMain();
-}